Toilet bowl



FIG. 1 is a top perspective view of a toilet bowl showing our new design;

FIG. 2 is a front elevational view;

FIG. 3 is a back elevational view;

FIG. 4 is a top view;

FIG. 5 is a right elevational view, a left elevational view being a mirror image thereof; and,

FIG. 6 is a bottom plan view. 

The ornamental design for a toilet bowl, as shown and described. 